Rockwell Automation 1772-LV,D17726.6.1 A and I MNL MINI-PLC-2/15 PROCESSO - Manual (Page 8)

Controller Components
Chapter 2
2Ć3
The System Power Supply (Cat. No. 1771-P1) is the required power source for
the Mini-PLC-2/15 Controller (Figure 2.1). It converts the incoming AC
voltages into the proper DC voltages to power the Processor and I/O Modules.
The System Power Supply can operate on either 120V AC or 220/240V AC. It
provides a regulated output of 5.1V DC to power the logic circuitry of the
Processor and I/O Modules. It also provides 5V DC for the memory circuitry of
the Processor module.
The 5.1V output provides a maximum current of 6.5 amperes for the Processor
and I/O Modules. Thus, the current requirements of the selected I/O Modules
and Processor Module added together cannot exceed 6.5 amperes. The current
requirements for available modules are listed in Table 1.A.
The System Power Supply is protected against undervoltage, overvoltage and
overcurrent conditions. it constantly monitors the incoming AC voltage for
proper levels (98 to 132V AC for 120V AC operation; 196 to 250V AC for
220/240V AC operation). The power Supply allows some margin for variation
from this normal voltage range. There is a minimum voltage of 92V for 120V
AC operation and 184V for 220/240V AC operation. if the AC line voltage
drops below the minimum voltage for more than one-half cycle, the Power
Supply signals the Processor to stop communication with the I/O Modules
before invalid I/O data is transmitted. Once the correct AC level returns,
communication with the I/O Modules is re-established.
Figure 2.2
System Power Supply
Battery Pack
(Cat. No. 1771ĆBB)
10694ĆI
System Power Supply